Angularly-resolved light scattering patterns of clusters: impact of changes to internal structure

Aerosol morphology significantly influences light scattering, making it possible to infer an aerosol particle's size, shape, and composition by analyzing its angularly-resolved light scattering pattern. Previous studies have examined the light scattering patterns of densely packed clusters of spheres, establishing a correlation between the speckle size in the scattering pattern and the cluster size. In this work, we investigate the effect of internal structure on light scattering patterns. Using the Multiple-Sphere T-Matrix (MSTM) code, we simulate the scattering patterns of dense sphere clusters. Subsequently, we modify the clusters by hollowing out the center, removing spheres within a certain distance from the cluster's core, and simulate the resulting scattering patterns. The speckle size in these patterns is analyzed and compared to the changes in internal structure.